/**
 * Copyright 2014 opencxa.org
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.cxa.rpc.cloud.server.components;

import java.util.HashMap;
import java.util.Map;

import org.cxa.rpc.cloud.server.CloudServer;
import org.cxa.rpc.cloud.server.IoBroker;
import org.cxa.rpc.cloud.server.components.authentication.AuthenticationComponent;
import org.cxa.rpc.provider.Component;
import org.cxa.rpc.provider.RpcCommand;
import org.cxa.rpc.provider.RpcCommand.RestrictionType;


/**
 * @author Christopher Armenio
 *
 */
public class SystemComponent extends Component
{
	public SystemComponent()
	{
		super("sys");
		this.addSubComponent(new AuthenticationComponent());
	}
	
	
	@RpcCommand(RestrictionType.USER_OR_GROUP)
	public Map<String, Integer> getNumConnectedDevices()
	{
		Map<String, Integer> retVal = new HashMap<String, Integer>();
		retVal.put("iob_connClients", IoBroker.getSingleton().getConnectedClients().size());
		retVal.put("jetty_openConns", CloudServer.getSingleton().getNumOpenConnections_jetty());
		return retVal;
	}
	
	
	@RpcCommand(RestrictionType.USER_OR_GROUP)
	public Map<String, Long> getMemoryStats()
	{
		Map<String, Long> retVal = new HashMap<String, Long>();
		
		Runtime rt = Runtime.getRuntime();
		retVal.put("used_MB", (rt.totalMemory() - rt.freeMemory()) / 1024 / 1024);
		retVal.put("free_MB", (rt.freeMemory() / 1024 / 1024));
		retVal.put("total_MB", (rt.totalMemory() / 1024 / 1024));
		
		return retVal;
	}
}
